Other Physics Answers

A disoriented physics professor drives 3.25 km north, then 2.20 km west, and then 1.50 km south. Find the magnitude and direction of the resultant displacement using the component method.

Identify three out of the four vectors v1=(2,1,3,1), v2=(-1,0,1,2), v3=(3,2,7,4), v4=(1,2,0,1) which are linearly independent.

How would you relate fluid pressure and the depth of the fluid?

At the instant an electron enters a uniform magnetic field of 0.500 T directed along the positive x-axis, its velocity has the following components: v x =2.00*10^ 6 m / s ,v y =0 and v z =3.00*10^ 6 m / s . Find the radius and pitch of the helical path followed by the electron.

what is the image distance and the image size if a 4:00 cm tall light bulb is placed a distance of 30.5 cm from a diverging lens having a focal length of -11.2 cm?

Two cups tied to a string on both end , explain how sound waves travels to the other end

Make your own word problem about Entropy change. One (1) for Entropy Change for the Freezing of Water and another one (1) for Entropy Change during Free Expansion of a Gas. Show your illustrations and complete solutions to the problems.

Activity Direction: Place a raisin or marshmallow on the end of a stick of spaghetti. Shake your hands back and forth to make the pasta/raisin system oscillate.

Materials: Pasta and Raisins/Marshmallows

A. Does the period depend on the mass?

B. Does the period depend on the length?

Answer the following questions on a separate paper.

• a) Do you think this system motion would fall under the classification of simple harmonic motion? Provide as much evidences as you can for your answer.

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• b) Do your answers to A and B above matches a spring/mass system or a pendulum? How so?

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• c) Do you think this system can be modeled as pendulum, spring, or neither? What are your reasons for each?

A 2kg block at rest is acted upon by a constant force of 20N for 4 seconds. Find: (a). what momentum is required by the block ? (b). Find the final velocity of the block. Show complete solutions.

A 2kg mass is acted upon a force of 50N for 10 seconds. Find: (a). The impulse (b). The change in velocity of the object. Show complete solution.